nit: break a long line in different ways, unobfuscate parameter grouping

nit: break a long line in different ways, unobfuscate parameter grouping

Break a rather long line for a Python method call at a different
location, to better reflect the parameter groups which organize for the
method to get called, and those which pass parameters to that called
method. This commit also splits the actual action and its check for
successful execution into separate C language statements.